Part A Two point charges of +20.0 C and -8.00 C are separated by a distance of 2
ID: 1276641 • Letter: P
Question
Part A Two point charges of +20.0 C and -8.00 C are separated by a distance of 20.0 cm. What is the magnitude of electric field due to these charges at a point midway between them? (k = 1/4 0 = 8.99 * 10^9 N · m2/C2) Two point charges of +20.0 C and -8.00 C are separated by a distance of 20.0 cm. What is the magnitude of electric field due to these charges at a point midway between them? (k = 1/4 0 = 8.99 * 10^9 N · m2/C2)
25.2 * 10^6 N/C directed toward the positive charge
25.2 * 10^5 N/C directed toward the positive charge
25.2 * 10^6 N/C directed toward the negative charge
25.2 * 10^5 N/C directed toward the negative charge
25.2 * 10^4 N/C directed toward the negative charge
Explanation / Answer
E = kq /r^2
at mid point :
Enwt = 9 x 10^9 [ 20 x 10-6 / 0.10^2 + 8x 10-6 / 0.10^2 ]
Enet =25.2 x 10-6 N/c directed towards towrds negative chARge .